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Groundwater Erosion and Deposition

Groundwater Erosion and Deposition
Reading Level
     edHelper's suggested reading level:   high interest, readability grades 6 to 7
     Flesch-Kincaid grade level:   6.43

Vocabulary
     challenging words:    deposition, drips, erosion, collapse, zone, opening, connection, mineral, groundwater, soil, cause, interesting, especially, develop, limestone, actually

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Groundwater Erosion and Deposition
By Patti Hutchison 		  
1     Running water on the surface of the earth erodes the land. Groundwater also can cause erosion under the surface. As water flows through the soil, acid is formed. This acid can cause minerals to be dissolved.
 
2     Minerals that are carried in groundwater can also be deposited in other places. This cycle of erosion and deposition can cause underground caves to form. This happens especially in areas where there is limestone below the surface.
 
3     A cave is an underground opening. It has a connection to the surface of the earth. A cave is formed by the erosion of limestone under the ground. The acid water moves through the cracks in the limestone and makes them larger.

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